Ventilated sighting-rib for guns.



P. 0. HOAGLAND.

VENTILATED SIGHTING RIB FOR GUNS.

APPLICATION FILED 111111.23, 1912.

1,029,292, Patented June 11, 1912. K

WITNESSES: I I INVENTOR JAM; 22M $9 44 ATTORNEY COLUMBIA PLANOGRAPHIO-.WASHINGTDN. n. c.

turer. In practice,

FRANK HOAGLAND, OF BRIDGEPOBT, CONNECTICUT, ASSIGNOR TO REMINGTON ARMSAND AMMUNITION COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

VENTILATED SIGHTING-RIIB FOR GUNS.

Specification of Letters Patent.

Patented June 11, 1912.

To all whom it may concern:

Be it known that I, FRANK O. HoAcLAxo, a citizen of the United States,residing at Bridgeport, county of Fairfield, State of Connecticut, haveinvented an Improvement in Ventilated Sighting-Ribs for Guns, of whichthe following is a specification.

This invention has for its object to provide an integral, ventilated,hollow, sighting rib for guns of light but strong construction, whichwill withstand all ordinary strains of use, will prevent unevenexpansion of the gun barrel and breakage of the rib or pillars, and,owing to its construction, will permit heat waves to be quicklydissipated, thereby minimizing the heat wave difficulty which hasheretofore been a serious objection, especially in cold weather, to theuse of sighting ribs.

With these and other objects in view, I have devised the novel integralsighting rib which I will now describe, referring to the accompanyingdrawing forming a part of this specification and using referencecharacters to indicate the several parts.

Figure 1 is a cross section of a gun barrel provided with my novelsighting rib on the line 1-1 in Fig. 3, looking in the direction of thearrows; Fig. 2, an elevation of a gun barrel detached provided with mynovel sighting rib; Fig. 3, a plan view partly in horizontal sectioncorresponding with Fig. 1; and Fig. A is a side elevation correspondingwith Figs. 1 and 3.

1O denotes a gun barrel, 11 the sighting rib, and 12 the pillars bywhich it is connected to the barrel. The pillars are relatively smalland are placed in staggered relation to each other. The rib is providedwith relatively wide transverse openings 13 between the pillars and thepillars are spaced apart transversely to provide a central longitudinalopening 14 the entire length thereof. (See Fig. 1 in connection withFig. 3.) It will of course be understood that the exact shape and sizeof the rib, or the pillars or the longitudinal or transverse openingsare not of the essence of the invention but may be varied to an almostunlimited extent to meet therequirements of use or the taste of themanufacthe shape of the rib and pillars, and also of the longitudinaland Copies of this patent may be obtained for transverse openings, willnecessarily correspond with the design of the cutters by which they areformed. For the sake of appearance only, I preferably progressivelydecrease the length of the transverse openings slightly from the stockend toward the muzzle end of the barrel.

The general efiect of the peculiarly open construction of the rib is towholly avoid the usual objections to sighting ribs caused by undueexpansion of the barrel and consequent breakage of the rib and pillars.By providing the relatively long transverse openings between the pillarsand in connection therewith the central longitudinal opening the entirelength of the rib I insure the most perfect ventilation of the ribpossible, prevent the intense heat of the barrel from being transmittedto the rib, which is kept relatively cool, and prevent excessive strainsof expansion and contraction of either pillars or rib. Furthermore, theperfect ventilation of the rib causes the almost instant dissipation ofthe heat waves which rise from the barrel and have heretofore interferedvery seriously with the use of guns provided with sighting ribs,especially in cold weather.

Having thus described my invention, I claim:

1. A gun barrel provided with a sighting rib supported by pillars instaggered relation and having transverse openings between the pillarsand a longitudinal opening the entire length of the rib.

2. A gun barrel having an integral sighting rib and pillars therefor instaggered relation, said pillars being spaced apart transversely toprovide a longitudinal opening extending the length of the rib.

3. A gun barrel provided with a sighting rib supported by pillars instaggered relation leaving relatively wide transverse openings betweenthe pillars.

4. A gun barrel provided with a sighting rib supported by pillars, thewidth of the pillars being less than the width of the rib.

In testimony whereof I aflix my signature in presence of two witnesses.

FRANK O. HOAGLAND.

\Vitnesses:

S. W. ATHER'roN, M. L. HAGGEMAN.

five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

